/Engine/Plugins/Runtime/SmartObjects/Source/SmartObjectsModule/Public/SmartObjectSubsystem.h
Adds a single tag to the smart object instance represented by the provided handle.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="SmartObject") void AddTagToInstance ( const [FSmartObjectHandle](API\Plugins\SmartObjectsModule\FSmartObjectHandle) Handle, const [FGameplayTag](API\Runtime\GameplayTags\FGameplayTag) & Tag )